Statistics indicate that manufacturing jobs in the U.S. have hit a 60 year low. Despite the harrowing conditions in which many of the workers endure on a daily basis, both the workers and the industry know that without policy changes, their jobs are dooming. Metal fume fever is the most common acute respiratory illness experienced by welders. Chronic Manganese poisoning can cause Parkinson’s-like disease and other respiratory illness. The color of Manganese is pink.